Stainless Steel Brake-Caliper Pistons?

[Anthony]

Yes or no?

My pistons have light spots of corrosion on them
Should I try cleaning them up with some 2000 grit sandpaper and polish

Or should I buy some new stainless ones?

Stainless are £15ea
Standard are £7ea

[Richard B]

Hopefully the stainless ones will be less likely to sieze up if the car is left standing at any time.

Don't know how much you intend to use it when done its ready? but normal fluid is supposed to be changed every two years to prevent water in the system causing corrosion. Silicon fluid would help prevent that, but....

[Nick Moore]

I read somewhere that the stainless steel pistons weren't as finely polished as the chrome plated originals. The result would be a shortened life for the seals. Perhaps polishing them before installation would help?

[markcro]

I rebuilt my calipers a few months ago (but that is a different story! Don't mention the war!!), anyway I had to make this decision when ordering the pistons and I went for the standard steel ones based on cost. For if the original steel ones only needed to be replaced now after 39 years I recon that I won't care much if they need to be done again in another 39 years or not.